Woodworking-machine



G. F. WELIVAR.

WOODWORKING MACHINE.

APPLICATION FILED ocT. 5, 1920.

4 SHEETS-SHEET I.

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WOODWORKING MACHINE.

JAPPLICATION FILED 0m. 5. 1920.

4 SHEETS-SHEET 2.

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Patented Aug. 30, 1921'.

G. F. WELIVAR.

WOODWORKING MACHINE.

APPL ICATION FILED OCT- 5, 1920.

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GflI VZZ/VAIZ v 1 3&3 1 I I aka/nap G. F. WELIVAR. WOODWORKING MACHINE.

APPLICATION FILED on. 5, 1920.

- Patented Aug. 30, 1921;

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. changes in the precise embodiment of the UNITED STATES PATENT OFFICE.

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Specification of Letters Patent.

Application filed October 5, 1920. Serial No. 414,755.

T all whom it may concern:

Be it known that I, 'GEoRsE FRANKLIN lVELIvAR, a citizen of the United States, re siding at Williamsport, in the county of Ly:

coming and State of Penrxigylvania, have in-- vented a new and useful oodworking-Ma chine, of which the following is a specification.

This invention relates to wood working machines adapted to mold, carve, and otherwise shape wood so as to produce, rosettes or corner blocks, paneling and. similar ar- 'ticles.

One of the objects of the invention is to provide a machine which can be converted readily froma molder and carver to a single spindle shaper for producing edge molding.

Another object is to provide a machine from which belt vibration is eliminated, thereby producing much smoother work than is ordinarily possible.

A further object is to provide a machine having greater cutting power than ordinary belt machines of the same size.

Another object is to, provide a'machine in which the carver spindle, while operating, can be quickly shifted into active position, the same automatically returning to its initial position when released.

Another object is to provide a machine in which a'practicall instantaneous reverse movement canbe e ected,simple and efli- V cient foot operated means being provided forthis purpose.

"With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood invention shown can be made without dein shown in section.

- ig. 2 is a front elevation, the guard beremoved.

in Fig. 3 is a view partly inside'elevation and partly in section of the head of the arm and the parts.carried thereby,

Fig. 4 is a section through the top portion of the head and showing the shifting cam in elevation.

Fig. 5 is a section showing the bottom bearing of the spindle.

Fig. 6 is a front elevation of a portion or the machine arranged as a spindle shaper.

Fig. 7 is a section on line 7-7, Fig. 6.,

Fig. 8 is a transverse section through; the headstock.

Fig. 9 is a detail view of the tubular shaft or journal connecting the opposed friction gears. 1

Referring to the figures by characters of reference 1 designates a'pedestal preferably formed in a single casting and provided with a table 2. Arranged upon the front of the pedestal are guide cleats 3 between which is slidably mounted a headstock 4 adapted to be held securely in any position to which it may be adjusted, by means of set screws 5 or the like. This headstock has a rearwardly extending ear 6 engaged by an adjusting screw 7 which is swiveled within a cross strip 8 formed on the pedestal. To this screw is secured a gear 9 meshing with another gear 10 which, in turn, is secured to a short transverse shaft 11 journaled in the pedestal. A hand wheel 12 is provided at the outer end of shaft lland by means thereof the headstock can be readily adjusted upwardly and downwardly relative to the pedestal. As shown in Fig. 7 and by dotted lines in Fig. l the lower end of the screw 7 is mounted in a thrust bearing 13 arranged below the cross strip 8.

The headstock is provided with spaced bearings 14 each having an oil cup 15 opening into bores .16 provided in the bearings. A collar 17 is interposed between the bearings 14 and is secured to a spindle 18 journaled within the bearings. This collar has radial openings 19 anyone of which is adapted to receive a pin 20 for the purpose of holding the spindle against rotation during the application of a cutting tool thereto. The spindle has a collar 21 adapted to bear downwardly on the upper bearing 14 and projecting upwardly from this end of the spindle is a stem 22 to which the cutting tool can beattached-by screwing it thereon.

Secured on the pedestal 1 below the cleats 3 are guide cleats 23v slidably engaged bye cross head 24. In this cross head lsjournaled a vertical tubul'arshaft to which Patented Aug. 30, 1921.

26 and 27, the lower end of the shaft projecting into an anti-friction thrust bearing 28 carried by the lower portions of the cross head. Spindle 18 is slidablewithin shaft or journal 25 and is splined as at 18 or otherwise connected so as to drive the said spindle 18 while allowing free up and down movement of shaft 25.

Projecting from the cross head 24; is an arm 29 on which is journaled an anti-friction roller 30. This roller extends over and in contact with a cam 31 which is mounted to swing horizontally on the base of the pedestal about a pivot 32. Secured to this cam and overhanging the roller is a re taining plate or cap 33 so shaped as to cooperate with the cam 31 to form a cam slot or opening in which the roller 30' will travel. A projection 34 extends from the cam and can be shifted by the foot of the operator so as to cause the cam to move the roller 30 and the cross head 24 upwardly or downwardly, thereby to correspondingly raise or lower the friction gears 26 and 27.

Supported between the friction gears 26 and 27 is a friction gear 35 secured to a shaft 36 which is j ournaled in suitable bearings provided therefor. This shaft has a collar 37 thereon and a spring 38 is mounted on the shaft and bears against the collar and against one of the bearings. Thus the frictiongear 35 is pressed yieldingly into con tact with one of the gears 26 and 27 so as to operate it. A pulley 39 is secured to the shaft 36 and is adapted to be driven by a suitable belt not shown. Obviously by thrusting the projection 34 in one direction the gear 26 will be elevated into contact with the gear 35 so as to rotate the shaft 25 in one direction. By-moving the projection 3 l in' the opposite direction, however, the gear 27 will be lowered into contact with gear 35 so that the rotation of the shaft 25 will be instantaneously reversed.

A guard plate 40 is connected to the front portion of the pedestal so as to house the headstock, gears, etc., and this plate can be provided with a hinged door 4-1 whereby access can be had readily to the mechanism.

The machine as described and which is illustrated'in Figs. 6 and 7 can be used for on which an arm is pivotally mounted.

This arm is held against rotation by a re movable pin46. Journaled in the arm and within-the bracket 43 is a vertical shaft 47 to thelower end of which is secured a pulley 4C8 adaptedto be driven by a belt a9 receiving motion from a pulley 50 on the shaft 25. Theupper endof the shaft 17 has a pulley 51 which transmits motion through a belt 52 to a pulley 53 secured to a spindle 54 to which a cutting tool is adapted to be connected. This spindle is slid-ably and revolubly mounted within bearings and formed at the ends of a yoke 57 which is provided at the free end of the arm 45. The pulley 53 is arranged between spaced sleeves 58 which are slidable within the bearings and 56. The spindle 5% is mounted to rotate in these sleeves and the two sleeves are con nected by a yoke 59 which projects into the arm 45. A lug 60 is extended from the yoke 59 and bears downwardly on a spring 61 secured within the arm 4E5, this spring thus serving to yieldingly support the sleeves 58, pulley and spindle 5i in elevated positions.

Arranged on the upper bearing 55 is a housing 62 into which the spindle 54 projects, and j ournaled within this housing is a transverse shaft 63 carrying a cam 64-. A crank arm 65 or the like is connected to the outer end of the shaft and by means thereof the cam 6 1 can be rotated so as to force the spindle 54: and the parts mounted thereon downwardly a distance equal to the depth of the cup to made in the work.

When the arm 415 and the parts carried thereby are to be used the headstock 4c is elevated by means of the screw 7 and the cutting tool or edge spindle is removed after which a small auxiliary table such as indicated at 66 is placed in position to be operated by the shaft 25 and the machine is then ready for use in cutting a variety of moldings, rosettes and the like.

What is claimed is:

1. In a wood working machine the combination with a pedestal and a table thereon, of'a vertically movable headstock, means for shifting said headstock vertically, a friction drive gear, a slidable cross head below the headstock, opposed friction gears thereon, a spindle journaled within. the headstock and slidable within but revoluble with the opposed friction gears, said spindle being adjustable vertically with the headstock and within the opposed friction gears, and foot operated means for shifting the cross head to position either of the opposed friction gears in contact with the drive gear.

2. In a wood working machine the combination with a pedestal anda table thereon, of a vertically movable headstock, means for shifting said headstock vertically, a friction drive gear, a slidable cross head below the headstock, opposed friction gears thereon, a spindle journaled within the headstock and slidable within but revoluble with the opposed friction gears, said spindle being adjustable vertically with the headstock and within the opposed friction gears, a laterally movable foot operated pivoted cam, means actuated thereby for imparting up and down movement to the cross head to position either of the opposed friction gears in contact with the drive gear.

3. In a wood working machine the combination with a pedestal and a table thereon, of a Vertically movable headstock, means for shifting said headstock vertically, a friction drive gear, a slidable cross head below( the headstock, opposed fni'ction gears thereon, a spindle journaled within the headstock and slidable within but revoluble with the opposed friction gears, said spindle being adjustable vertically with the headstock and within the opposed fric- .tion gears, foot operated means for shifting the cross head vertically to position either of the opposed friction gears in contact with the drive gear, and yielding means for pressing the drive gear into contact with the engaged friction gear.

4. In a wood working machine the combination with a pedestal, of a vertically movable headstock, a spindle journaled therein and adjustable vertically therewith a work engaging element upon the spindle:

opposed friction gears slidably engaged by but revoluble with the spindle, a pulley revoluble with said spindle, a friction drive gear, foot operated means for shifting the opposed gears to position either of them in contact with the drive gear, an angularly adjustable arm overhanging the pedestal, a spindle journaled therein, a pulley on the spindle, a vertical shaft, and means for transmitting motion between said shaft and both of the pulleys.

5. In a wood working machine the combination with a table, of an overhanging arm, a yoke carried by the arm, a spindle mounted to slide and rotate within the yoke, spaced sleeves mounted thereon, a pulley engaging the spindle, a connection between the sleeves, a projection upon said connection and extending into the arm, a supporting spring secured within the arm and extending under the projection to hold the spindle and vpulley normally elevated, a cam mounted within the top portion of the yoke, and means for rotating the cam to engage the upper end of the spindle and shift it toward thetable, and means engaging the pulley for rotating the spindle when in any of its positions.

In testimony that I claim the foregoing as my own, I have hereto'affixed my signature in the resence of two witnesses.

GEORaE FRANKLIN I/VELIVAR.

Witnesses:

EDNA STUTZMAN, A. GRANT Com. 

